Question about SERVFAIL error

[Mark Andrews]

> Hello~~ My name is KyoungHee Kim, in Korea.
>  
> 
> Our company has two dns. One is primary DNS and the other is secondary DNS. 
> 
>  
> 
> Currently, I'm experiencing some odd behavior on Primary DNS. Its bind
> version is BIND 9.2.4.
> 
> Secondary DNS is well operated and its bind version is BIND 9.2.1
> 
>  
> 
> Only primary DNS can¡¯t often resolve about certain site. Certain sites are
> ¡®techwing.co.kr¡¯ and ¡®mail.chiptron.co.kr.¡¯ 
> 
> Error message in Primary DNS is ¡°server can't find techwing.co.kr:
> SERVFAIL¡±
> 
>  
> 
> After I change name server through nslookup, name resolving is success. 
> 
> Both Secondary DNS and ISP¡¯s DNS are success in name resolving about
> certain site.
> 
> Only our primary DNS can¡¯t resolve about certain site.
> 
>  
> 
> What is meaning of ¡°server can't find techwing.co.kr: SERVFAIL¡±?
> 
> Why is happened? 
> 
> What should I do that?
> 
>  
> 
> This is probably better explained by showing you what I've done in regards
> to nslookup, dig
> 
>  
> 
> ===================== NSLOOKUP¡¯s Result
> ===================================================
> 
> #nslookup 
> 
> > techwing.co.kr
> 
> Server:         202.30.128.12
> 
> Address:        202.30.128.12#53
> 
>  
> 
> ** server can't find techwing.co.kr: SERVFAIL
> 
> =============================================================================
> =============
>  
> 
> =======================  Dig¡¯s Result
> ======================================================
> dig @ns.hynix.com techwing.co.kr
> 
>  
> 
> ; <<>> DiG 9.2.4rc6 <<>> @ns.hynix.com techwing.co.kr
> 
> ;; global options:  printcmd
> 
> ;; Got answer:
> 
> ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 1655
> 
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
> 
>  
> 
> ;; QUESTION SECTION:
> 
> ;techwing.co.kr.                        IN      A
> 
>  
> 
> ;; Query time: 3 msec
> 
> ;; SERVER: 202.30.128.12#53(ns.hynix.com)
> 
> ;; WHEN: Wed Mar 15 11:05:27 2006
> 
> ;; MSG SIZE  rcvd: 32
> 
> =============================================================================
> ===============

	The nameservers do not exist according to the server for the
	zone.

	Mark

; <<>> DiG 8.3 <<>> ns.techwing.co.kr @211.195.124.66 
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 31835
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUERY SECTION:
;;	ns.techwing.co.kr, type = A, class = IN

;; AUTHORITY SECTION:
techwing.co.kr.		1H IN SOA	techwingins.techwing320.local. hostmaster.techwing320.local. (
					41		; serial
					15M		; refresh
					10M		; retry
					1D		; expiry
					1H )		; minimum


;; Total query time: 143 msec
;; FROM: drugs.dv.isc.org to SERVER: 211.195.124.66
;; WHEN: Thu Mar 16 07:31:50 2006
;; MSG SIZE  sent: 35  rcvd: 125


; <<>> DiG 8.3 <<>> ns2.techwing.co.kr @211.195.124.66 
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 55505
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUERY SECTION:
;;	ns2.techwing.co.kr, type = A, class = IN

;; AUTHORITY SECTION:
techwing.co.kr.		1H IN SOA	techwingins.techwing320.local. hostmaster.techwing320.local. (
					41		; serial
					15M		; refresh
					10M		; retry
					1D		; expiry
					1H )		; minimum


;; Total query time: 143 msec
;; FROM: drugs.dv.isc.org to SERVER: 211.195.124.66
;; WHEN: Thu Mar 16 07:32:20 2006
;; MSG SIZE  sent: 36  rcvd: 126

--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org